Home / 28,996,717.14-40,015,188.32-15,765,893.87

Finding the Fourth Proportional to 28,996,717.14, 40,015,188.32 and 15,765,893.87

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Solution

The fourth proportional to 28,996,717.14, 40,015,188.32 and 15,765,893.87 is: 21,756,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996,717.14 : 40,015,188.32 = 15,765,893.87 : x
  2. Step 2: Convert to fraction form
    28,996,717.14/40,015,188.32 = 15,765,893.87/x
  3. Step 3: Cross multiply
    28,996,717.14x = 40,015,188.32 × 15,765,893.87
  4. Step 4: Simplify right side
    28,996,717.14x = 630,875,212,320,380.50
  5. Step 5: Solve for x
    x = 630,875,212,320,380.50/28,996,717.14
  6. Step 6: Final answer
    x = 21,756,780.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.